Quantum Crystal With “Time Reversal” Could Be a New Dark Matter Sensor

https://scitechdaily.com ^ | AUGUST 5, 2021 | By NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST)

[Red Badger]

Dark Matter Crystal Ping!................

[econjack]

The quantum sensor consists of 150 beryllium ions (electrically charged atoms) confined in a magnetic field, so they self-arrange into a flat 2D crystal just 200 millionths of a meter in diameter. Quantum sensors such as this have the potential to detect signals from dark matter — a mysterious substance that might turn out to be, among other theories, subatomic particles that interact with normal matter through a weak electromagnetic field. The presence of dark matter could cause the crystal to wiggle in telltale ways, revealed by collective changes among the crystal’s ions in one of their electronic properties, known as spin.

Damn! I was working on the same thing in my garage last Monday.

[Hoosier-Daddy]

I wonder where all my antimatter went

[E. Pluribus Unum]

200-millionths of a meter = 200-thousandths of a millimeter = 0.2 millimeter.

Why not just say 0.2 millimeter?

[Red Badger]

200-millionths sounds soo much more techy-talky.........................

[TTFX]

Why not just say 0.2 millimeter?

---

Why not 200 micrometers?

[algore]

“We know 85% of the matter in the universe is made of dark matter”

yep okdokey I believe you,

Especially how you first detected something, I mean nothing detectable was out there.

In some clusters, the space between galaxies is filled with extremely hot air, scientists cannot see it using visible light telescopes. The gas only can be seen as X-rays or gamma rays. Scientists look at that gas and measure how much there is between galaxies in clusters.

By doing this, they discovered that there must be five times more material in the clusters than we can detect. The invisible matter that we can’t detect is called “dark matter.”

I call it either a measurement error, or a comprehension error

[Red Badger]

It’s in the dilithium crystals..

[freedumb2003]

Two of my favorites

[Red Badger]

‘Dark Matter’ is a place holder for ‘We don’t Know’..................

[freedumb2003]

Damn! I was working on the same thing in my garage last Monday.

Last time I tied I jut got this:

[alloysteel]

Typified by the square root of -!. Perhaps in some universe it does exist.

Just not ours.

[algore]

https://www.starrett.com/metrology/product-detail/T469HXSP

The Starrett 469, 469M Series Large, Super-Precision Micrometer Head

The micrometer head has a 4-1/16” (103mm) thimble diameter and is graduated to 0.001mm, or 0.002mm for direct reading.

only $1800

[econjack]

Mine was red!

[Red Badger]

If Dark Matter is invisible, how will they know where it is if they drop it?.......................

[Red Badger]

I used to use that very item! when I WAS IN metrology!..........

[beef]

I would not think that 150 atoms of anything could come to 0.2mm no matter how they are arranged. A hairs width is less than 0.2mm.

[algore]

I always wanted one of these

[Bob434]

[[Quantum Crystal With “Time Reversal”]]

Speakin of time reversal, slept backerds last night and woke up the day before- had to relive yesterday ll over again- I’ll be glad when tomorrow gets here!